Your computer isn't infected on a first look and unknown MBR code usually doesn't mean that system is infected but that mbr code isn't known to the tool or that tool isn't updated for that operating system.
System File Checker
Press the
on your keyboard. Type cmd and right click >> Run as Administrator.
Copy/Enter the command below and press Enter:
Code:
sfc /scannow
Windows will begin with system scan.
When done, please reboot your system.
System File Checker report:
Press
+ R on your keyboard at the same time. Type cmd and click OK.